Datasheet

STPM01 Electrical characteristics
Doc ID 10853 Rev 8 11/60
5 Electrical characteristics
V
CC
= 5 V, T
A
= 25 °C, 100 nF to 1 uF between V
DDA
and V
SS
, 100 nF to 1 uF between V
DDD
and V
SS
, 100 nF to 1 uF between V
CC
and V
SS
unless otherwise specified.
Table 7. Electrical characteristics
Symbol Parameter Test conditions Min. Typ. Max. Unit
Energy measurement accuracy
f
BW
Effective bandwidth Limited by digital filtering 5 400 Hz
e
AW
Accuracy of active power
Over 1 to 1000 of dynamic
range
0.1 %
e
RW
Accuracy of reactive power
Over 1 to 1000 of dynamic
range
0.1 %
e
SW
Accuracy of apparent power Over 1 to 500 of dynamic range 0.1 %
SNR Signal to noise ratio Over the entire bandwidth 52 db
PSRR
DC
Power supply DC rejection
Voltage signal: 200 mV
rms
/50Hz
Current signal: 10 mV
rms
/50Hz
f
CLK
= 4.194 MHz
V
CC
=3.3V±10%, 5V±10%
0.2 %
PSRR
AC
Power supply AC rejection
Voltage signal: 200 mV
rms
/50Hz
Current signal: 10 mV
rms
/50Hz
f
CLK
= 4.194 MHz
V
CC
=3.3V+0.2V
rms
1@100Hz
V
CC
=5.0V+0.2V
rms
1@100Hz
0.1 %
General section
V
CC
Operating supply voltage 3.165 5.5 V
I
CC
Supply current configuration
registers cleared or device
locked (TSTD=1)
4 MHz, V
CC
= 5V 3 4
mA
8 MHz, V
CC
= 5V 5 6
ΔI
CC
Increase of supply current per
configuration bit, during
programming
4 MHz, V
CC
= 5V 120
µA/bit
Increase of supply current per
configuration bit with device
locked
4 MHz, V
CC
= 5V 2
POR Power on reset on V
CC
2.5 V
V
DDA
Analog supply voltage 2.85 3.0 3.15 V
V
DDD
Digital supply voltage 1.425 1.50 1.575 V
f
CLK
Oscillator clock frequency
MDIV bit = 0 4.000 4.194 MHz
MDIV bit = 1 8.000 8.192 MHz
f
LINE
Nominal line frequency 45 65 Hz
V
OTP
OTP programming voltage 14 20 V